I'm designing a product that has a need for an inexpensive low pressure (

Which companies make large diameter (eg 500 mm) flow control valves for water transmission mains, which can be driven by an electric actuator ?

No power since 8am now 3:30pm PoCo thinks they'll have it back on by tomorrow at 3pm. So it's on to the generator for keeping the business running. Never mind we're in the middle of a town of 50k an

If I add a small amount of alcohol while the engine is running under load can it reduce the combustion temperature and reduce the NOX output? As I have also been toying with a water injection system t

Currently I am modifying a NA EFI gasoline (non-diesel) engine to a turbo application. I have succeeded the first time, but now I am going into uncharted territory (larger turbo). I have been using

Can someone please help me out with the differences between; 1.a manual gate valve and hydraulically actuated gatevalve 2.needle valves and gate valves.

A small needle type valve has a pressure rating of 3500 psi and a temperature rating of 900 F but the manufacturer (who is no longer around) doesn't indicate if this is a continuous service rating.

Apart from the construction and manner of operation of the closure member, are there any other differences between gate valves and needle valves? Manual or actuated... or any other distinguishing fea